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6ES7921-3AA20-0AA0

2-year Warranty

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Siemens 6ES7921-3AA20-0AA0

MANUFACTURER: SIEMENS 
DESCRIPTION: Front connector module with flat ribbon Cable connection for digital 32 I/O modules of the S7-300, Power supply over Spring terminals
PRODUCT TYPE INFO: cONNECTOR
 

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2 Year warranty

Part Number6ES7921-3AA20-0AA0
ManufacturerSiemens
TypeConnectors
Model #6ES79213AA200AA0
Warranty2 Year
Range SIMATIC S7-300
CategoryFront connector
DescriptionDigital I/O modules
ApplicationFully modular connection
Voltage rating24 VDC
Rated current1A
Operating temperature0 ... 60 °C
Number of poles40; of the front connector
Plug contacts4
Electrical connection/cablePlug-in connection
Electrical connection/power supplySpring clamp
Poles16; the IDC connector for the connection cable
Cables per connection2; Connection for internal system: Combination of 1 or 2 Wires until the sum total of cross sections be achieved in a ferrule.
MountingDirect mounting
Terminal positionTop
Degree of pollution2

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Repair Benefits

MRO can restore your failed 6ES7921-3AA20-0AA0 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2-year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this 6ES7921-3AA20-0AA0 we also repair a wide range of other Siemens products, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty 6ES7921-3AA20-0AA0, just let us know, and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

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MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Siemens 6ES7921-3AA20-0AA0 Overview

Siemens 6ES7921-3AA20-0AA0

The Siemens 6ES7921-3AA20-0AA0 stands as a front connector module meticulously designed for seamless integration with the SIMATIC S7-300 target system. This fully modular connection module plays a pivotal role in facilitating the connection of digital I/O modules through a flat ribbon cable, offering a reliable solution for managing digital signals in industrial automation systems.

Operating Data and Header

Operating Voltage and Current:

Operating within a rated voltage of 24 V, with a maximum voltage of 60 V, the module ensures a robust power supply over spring terminals. With a rated current of 1 A and a continuous current of 1 A per plug-in contact (maximum 4 A overall), it provides a reliable electrical foundation.

Temperature Resilience:

Operating seamlessly within a temperature range of 0 to 60 °C, the module adapts to varying environmental conditions. It further demonstrates its versatility by being suitable for storage in temperatures ranging from -40 to +70 °C.

Connection Specifications:

The front connector module features 40 poles, providing a comprehensive interface for digital I/O modules. With 16 poles at the 1st interface using an IDC connector for the connection cable, the module supports a variety of connections. The plug-in connection for the connecting cable and a spring clamp for the power supply contributes to its adaptability.

Cable Connection and Flexibility

The module accommodates 8 terminals, with 4 each for L+ and M connections. It supports up to 2 cables per connection, offering flexibility in system configuration. The stripped length for cables is 6 mm, allowing for efficient and secure connections.

Environmental Adaptability

Operating seamlessly within an ambient temperature range of 0 to 60 °C during operation and storage, the module is well-suited for demanding industrial environments. With a wire length support of up to 30 meters between the front connector module and the terminal module, it provides flexibility in system design and layout.

General Data and Certification

Design and Mounting

Designed for direct mounting, the module adheres to degree 2 of pollution and overvoltage category 2 standards. Although it lacks a designation for EEx e type of protection, it holds cULus approval, affirming its compliance with stringent safety standards.

Material and Aesthetics

Constructed with an insulating body made of other materials and featuring a black enclosure, the 6ES7921-3AA20-0AA0 combines functionality with a sleek and professional aesthetic. While not transparent, its robust construction ensures reliability in demanding industrial applications.

Siemens 6ES7921-3AA20-0AA0

Q1: What is the primary function of the Siemens 6ES7921-3AA20-0AA0?

A1: The 6ES7921-3AA20-0AA0 serves as a front connector module specifically designed for the SIMATIC S7-300 target system. Its primary function is to facilitate the connection of digital I/O modules through a flat ribbon cable, providing a reliable solution for managing digital signals in industrial automation systems.

Q2: What is the operating voltage range of the module?

A2: The module operates within a rated voltage of 24 V, with a maximum voltage of 60 V.

Q3: How does the module handle temperature variations?

A3: The module demonstrates resilience to temperature variations, operating within a range of 0 to 60 °C during normal operation and being suitable for storage in temperatures ranging from -40 to +70 °C.

Q4: What is the connection specification of the front connector module?

A4: The module features 40 poles, providing a comprehensive interface for digital I/O modules. It supports 16 poles at the 1st interface using an IDC connector for the connection cable. The module employs a plug-in connection for the connecting cable and a spring clamp for the power supply.

Q5: How flexible is the module in terms of cable connections?

A5: The module accommodates 8 terminals, with 4 each for L+ and M connections. It supports up to 2 cables per connection, offering flexibility in system configuration. The stripped length for cables is 6 mm.

Q6: Does the module have any environmental adaptability features?

A6: Yes, the module operates seamlessly within an ambient temperature range of 0 to 60 °C during operation and storage. It supports a wire length of up to 30 meters between the front connector module and the terminal module, providing flexibility in system design and layout.

Q7: What certifications does the module hold?

A7: The module, while lacking a designation for EEx e type of protection, holds cULus approval, affirming its compliance with stringent safety standards.

Q8: What material is used for the insulating body of the module?

A8: The insulating body of the module is constructed using other materials.

Contact Us Today For More Information About Siemens Products

Check out the rest of our Siemens product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at sales@mroelectric.com, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 6ES7921-3AA20-0AA0, take a look at more from our Connectors line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our 6ES7921-3AA20-0AA0 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.

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